CN106756933A - A kind of aluminium alloy chrome-free tanning agent and preparation method thereof - Google Patents
A kind of aluminium alloy chrome-free tanning agent and preparation method thereof Download PDFInfo
- Publication number
- CN106756933A CN106756933A CN201611235588.4A CN201611235588A CN106756933A CN 106756933 A CN106756933 A CN 106756933A CN 201611235588 A CN201611235588 A CN 201611235588A CN 106756933 A CN106756933 A CN 106756933A
- Authority
- CN
- China
- Prior art keywords
- parts
- acid
- agent
- aluminium alloy
- free tanning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
A kind of aluminium alloy chrome-free tanning agent, according to parts by weight, the passivator is by 5 20 parts of water-based acrylic resins, 48 parts of oleic acid, 46 parts of malonic acid and 35 85 parts of water as host, using 10 30 parts of hydrofluoric acid and 38 parts of ammonium fluozirconates as assistant agent, and it is prepared as auxiliary agent mixing to add 0.1 5 parts of fluoboric acid and 0.1 5 parts of fluosilicic acid.Chrome-free tanning agent of the present invention, without heavy metal, chromium is not contained especially, it is to avoid die casting aluminium surface dust, and the corrosion resistance of aluminium alloy can be effectively effectively improved after aluminum alloy surface forms conversion film.
Description
Technical field
The present invention relates to matal deactivator technical field, specially a kind of aluminium alloy chrome-free tanning agent and its preparation side
Method.
Background technology
Aluminum passivation agent is various aluminum products and the special passivator of aluminum alloy surface, it is adaptable to which aluminium and aluminum alloy surface are formed
Chemical passivation film, has good Corrosion Protection through the chemical passivation film obtained by aluminum passivation agent treatment, can be used as paint, painting
Modeling, the pre-treatment of decoration.Aluminum products are applied more and more extensively in daily life and industrial and agricultural production, because aluminium is more active, its
Surface treatment is particularly important.It is aluminum passivation agent in the surface treatment last layer chemical passivation coating of aluminium and alloy, is anti-corrosion and dress
Decorations establish basis.It is used for the inorganic agent of die casting aluminium surface in the market substantially with trivalent chromium, Cr VI, or rare earth changes
Property combination strong oxidizer and the conversion film treating agent that constitutes, the above two are heavy metal, and generally existing problem of environmental pollution, the latter
Although environmental pollution improves to some extent, but can not thoroughly solve, while appearing in the conversion film of die casting aluminium surface formation again
Property indices decline or do not reach the requirement of practical application：Die casting aluminium surface discolouration, dust.Therefore exist improved
Space.
The content of the invention
In order to solve the above problems, the purpose of the present invention is to propose to a kind of aluminium alloy chrome-free tanning agent, without heavy metal,
Especially do not contain chromium, it is to avoid die casting aluminium surface dust, and aluminium can be effectively effectively improved after aluminum alloy surface forms conversion film
The corrosion resistance of alloy.
The present invention is for the taken technical scheme that solves the above problems：A kind of aluminium alloy chrome-free tanning agent, according to
Parts by weight, the passivator is made by 5-20 parts of water-based acrylic resin, 4-8 parts of oleic acid, 4-6 parts of malonic acid and 35-85 parts of water
It is host, using 10-30 parts of hydrofluoric acid and 3-8 parts of ammonium fluozirconate as assistant agent, and adds 0.1-5 parts of fluoboric acid and 0.1-5 parts of fluorine
Silicic acid is mixed as auxiliary agent and is obtained.
As preferred, according to parts by weight, the host by 18 parts of water-based acrylic resins, 6 parts of oleic acid, 5 parts the third two
Acid and 60 parts of water compositions, the assistant agent are made up of 20 parts of hydrofluoric acid and 6 parts of ammonium fluozirconates, and the auxiliary agent is by 3 parts of fluoboric acid and 3 parts
Fluosilicic acid is constituted.
Used as preferred, according to parts by weight, the host also includes 5-8 parts of Ludox.
Used as preferred, according to parts by weight, the assistant agent also includes 3-5 parts of fluotitanic acid.
Used as preferred, according to parts by weight, the assistant agent also includes 3-5 parts of citric acid.
Used as preferred, according to parts by weight, the auxiliary agent also includes 4-6 parts of tartaric acid and 3-8 parts of glacial acetic acid.
A kind of preparation method of aluminium alloy chrome-free tanning agent, comprises the following steps：
Step one：35-85 parts of water, 5-20 parts of water-based acrylic resin, 4-8 parts of oleic acid, 4-6 parts of malonic acid are taken under normal temperature and pressure,
Mix 30-50 minutes, obtain base solvent；
Step 2：To 10-30 parts of hydrofluoric acid and 3-8 parts of fluorine zirconic acid is added in base solvent, mix 30-50 minutes, obtain mixed
Bonding solvent；
Step 3：To 0.1-5 parts of fluoboric acid and 0.1-5 parts of fluosilicic acid is added in mixed solvent, stir to as clear as crystal, obtain finished product
Chrome-free tanning agent, detects qualified post package.
Compared with prior art, the invention has the advantages that：
, with water-based acrylic resin as primary raw material, water-based acrylic resin is in oleic acid and the organic acid of malonic acid formation for the present invention
Property under the conditions of, can with aluminium section bar occur chemical crosslink reaction, can be in aluminium shape surface rapid film formation, with hydrofluoric acid and fluorine zirconic acid
Ammonia is assistant agent, the effect that polished and cleaned activates aluminium shape surface is served during cross-linking reaction, with fluoboric acid and fluosilicic acid
As auxiliary agent, film forming is aided in, give full play to the anticorrosive anti-wear feature of zirconium, boron and element silicon, promote water soluble acrylic acid tree
Fat is forming composite high-molecular film with aluminium cross-linked reaction, substantially increases the decay resistance of film forming, combining powder application, and its is resistance to
The salt fog time was up to more than 3000 hours.
Additionally, it is preferred that, Ludox is also included in host, when processing aluminium section bar, Ludox can be in aluminium section bar table
Face forms membrane bone frame, for the attachment of other raw materials, to promote other raw materials to accelerate film forming in aluminium shape surface, while Ludox may be used also
Coordinate the ammonium ion in fluorine zirconic acid ammonia, acid-base property can be adjusted,.
Fluotitanic acid in assistant agent is used as chemical combination raw material, is acted synergistically with hydrofluoric acid and fluorine zirconic acid ammonia, promotes raw material in aluminium table
Face forms conversion film；Citric acid in assistant agent serves the effect of pickling to aluminium, further while sour environment is provided
Remove aluminium shape surface oxide skin so that other raw materials can effectively with aluminium section bar react, promote aluminium shape surface into
Film.
Tartaric acid in auxiliary agent is used as anti-oxidant synergist, retarder, in the present invention, controls the film forming speed of conversion film
Degree, promotes the film forming uniformity of aluminium shape surface；Glacial acetic acid is consistent with citric acid, while sour environment is provided, to aluminium
Material serves the effect of pickling, further removal aluminium shape surface oxide skin so that other raw materials can effectively with aluminium profiles
Material reacts, and promotes film forming.
Specific embodiment
The present invention is elaborated with reference to specific embodiment, the present embodiment premised on technical solution of the present invention,
Give detailed implementation method and specific operating process.
Embodiment 1
The present invention is a kind of aluminium alloy chrome-free tanning agent, and according to parts by weight, the passivator is by 5 parts of water soluble acrylic acid trees
Fat, 4 parts of oleic acid, 4 parts of malonic acid and 35 parts of water using 10 parts of hydrofluoric acid and 3 parts of ammonium fluozirconates as assistant agent, and are added as host
0.1 part of fluoboric acid and 0.1 part of fluosilicic acid are mixed as auxiliary agent and are obtained.
Further, according to parts by weight, the host also includes 5 parts of Ludox.
Further, according to parts by weight, the assistant agent also includes 3 parts of fluotitanic acids.
Further, according to parts by weight, the assistant agent also includes 3 parts of citric acids.
Further, according to parts by weight, the auxiliary agent also includes 4 parts of tartaric acid and 3 parts of glacial acetic acid.
A kind of preparation method of aluminium alloy chrome-free tanning agent, comprises the following steps：
Step one：35 parts of water, 5 parts of water-based acrylic resins, 4 parts of oleic acid, 4 parts of malonic acid are taken under normal temperature and pressure, 30 are mixed
Minute, obtain base solvent；
Step 2：To 10 parts of hydrofluoric acid and 3 parts of ammonium fluozirconates are added in base solvent, mix 30 minutes, obtain mixed solvent；
Step 3：To 0.1 part of fluoboric acid and 0.1 part of fluosilicic acid is added in mixed solvent, stir to as clear as crystal, obtain finished product Chrome-free
Passivator, detects qualified post package.
Embodiment 2
A kind of aluminium alloy chrome-free tanning agent, according to parts by weight, the passivator is by 20 parts of water-based acrylic resins, 8 parts of oil
Acid, 6 parts of malonic acid and 85 parts of water using 30 parts of hydrofluoric acid and 8 parts of ammonium fluozirconates as assistant agent, and add 5 parts of fluorine boron as host
Acid and 5 parts of fluosilicic acid are mixed as auxiliary agent and are obtained.
Further, according to parts by weight, the host also includes 8 parts of Ludox.
Further, according to parts by weight, the assistant agent also includes 5 parts of fluotitanic acids.
Further, according to parts by weight, the assistant agent also includes 5 parts of citric acids.
Further, according to parts by weight, the auxiliary agent also includes 6 parts of tartaric acid and 8 parts of glacial acetic acid.
A kind of preparation method of aluminium alloy chrome-free tanning agent, comprises the following steps：
Step one：85 parts of water, 20 parts of water-based acrylic resins, 8 parts of oleic acid, 6 parts of malonic acid are taken under normal temperature and pressure, 50 are mixed
Minute, obtain base solvent；
Step 2：To 30 parts of hydrofluoric acid and 8 parts of ammonium fluozirconates are added in base solvent, mix 50 minutes, obtain mixed solvent；
Step 3：To 5 parts of fluoboric acid and 5 parts of fluosilicic acid are added in mixed solvent, stir to as clear as crystal, obtain finished product chromium-free deactivation
Agent, detects qualified post package.
Embodiment 3
A kind of aluminium alloy chrome-free tanning agent, according to parts by weight, the host by 18 parts of water-based acrylic resins, 6 parts of oleic acid,
5 parts of malonic acid and 60 parts of water compositions, the assistant agent are made up of 20 parts of hydrofluoric acid and 6 parts of ammonium fluozirconates, and the auxiliary agent is by 3 parts of fluorine boron
Acid and 3 parts of fluosilicic acid compositions.
Further, according to parts by weight, the host also includes 7 parts of Ludox.
Further, according to parts by weight, the assistant agent also includes 4 parts of fluotitanic acids.
Further, according to parts by weight, the assistant agent also includes 4 parts of citric acids.
Further, according to parts by weight, the auxiliary agent also includes 5 parts of tartaric acid and 6 parts of glacial acetic acid.
A kind of preparation method of aluminium alloy chrome-free tanning agent, comprises the following steps：
Step one：60 parts of water, 18 parts of water-based acrylic resins, 6 parts of oleic acid, 5 parts of malonic acid are taken under normal temperature and pressure, 40 are mixed
Minute, obtain base solvent；
Step 2：To 20 parts of hydrofluoric acid and 6 parts of ammonium fluozirconates are added in base solvent, mix 40 minutes, obtain mixed solvent；
Step 3：To 0.1-5 parts of fluoboric acid and 0.1-5 parts of fluosilicic acid is added in mixed solvent, stir to as clear as crystal, obtain finished product
Chrome-free tanning agent, detects qualified post package.
Chrome-free tanning agent of the present invention, addition is simple, only needs to determine PH values and electrical conductivity in operating process, produces
Quality stabilization, concentration is 3-5% or so.PH value 2.2-3.2.
The above, is only presently preferred embodiments of the present invention, and any formal limitation is not made to the present invention, though
So the present invention is described as above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when a little change or modification made using technology contents described above
The Equivalent embodiments of equivalent variations are, as long as being without departing from technical solution of the present invention content, according to technical spirit of the invention
Any simple modification, equivalent variations and the modification made to above example, still fall within the range of technical solution of the present invention.
Claims (7)
1. a kind of aluminium alloy chrome-free tanning agent, it is characterised in that：According to parts by weight, the passivator is by 5-20 parts aqueous third
Olefin(e) acid resin, 4-8 part oleic acid, 4-6 parts of malonic acid and 35-85 parts of water as host, with 10-30 parts of hydrofluoric acid and 3-8 parts of fluorine zirconium
Sour ammonium is used as assistant agent, and it is prepared as auxiliary agent mixing to add 0.1-5 parts of fluoboric acid and 0.1-5 parts of fluosilicic acid.
2. a kind of aluminium alloy chrome-free tanning agent as claimed in claim 1, it is characterised in that：According to parts by weight, the master
Agent is made up of 18 parts of water-based acrylic resins, 6 parts of oleic acid, 5 parts of malonic acid and 60 parts of water, and the assistant agent is by 20 parts of hydrofluoric acid and 6
Part ammonium fluozirconate composition, the auxiliary agent is made up of 3 parts of fluoboric acid and 3 parts of fluosilicic acid.
3. a kind of aluminium alloy chrome-free tanning agent as claimed in claim 1, it is characterised in that：According to parts by weight, the master
Agent also includes 5-8 parts of Ludox.
4. a kind of aluminium alloy chrome-free tanning agent as claimed in claim 1, it is characterised in that：It is described auxiliary according to parts by weight
Agent also includes 3-5 parts of fluotitanic acid.
5. a kind of aluminium alloy chrome-free tanning agent as claimed in claim 1, it is characterised in that：It is described auxiliary according to parts by weight
Agent also includes 3-5 parts of citric acid.
6. a kind of aluminium alloy chrome-free tanning agent as claimed in claim 1, it is characterised in that：It is described to help according to parts by weight
Agent also includes 4-6 parts of tartaric acid and 3-8 parts of glacial acetic acid.
7. a kind of preparation method of aluminium alloy chrome-free tanning agent as claimed in claim 1, it is characterised in that including following step
Suddenly：
Step one：35-85 parts of water, 5-20 parts of water-based acrylic resin, 4-8 parts of oleic acid, 4-6 parts of malonic acid are taken under normal temperature and pressure,
Mix 30-50 minutes, obtain base solvent；
Step 2：To 10-30 parts of hydrofluoric acid and 3-8 parts of ammonium fluozirconate is added in base solvent, mix 30-50 minutes, obtain
Mixed solvent；
Step 3：To 0.1-5 parts of fluoboric acid and 0.1-5 parts of fluosilicic acid is added in mixed solvent, stir to as clear as crystal, obtain finished product
Chrome-free tanning agent, detects qualified post package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611235588.4A CN106756933A (en) | 2016-12-28 | 2016-12-28 | A kind of aluminium alloy chrome-free tanning agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611235588.4A CN106756933A (en) | 2016-12-28 | 2016-12-28 | A kind of aluminium alloy chrome-free tanning agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106756933A true CN106756933A (en) | 2017-05-31 |
Family
ID=58923903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611235588.4A Pending CN106756933A (en) | 2016-12-28 | 2016-12-28 | A kind of aluminium alloy chrome-free tanning agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106756933A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019006611A1 (en) * | 2017-07-03 | 2019-01-10 | 深圳市宏昌发科技有限公司 | Passivator, method of surface passivation of metal-plated part and metal workpiece |
| CN109440093A (en) * | 2018-11-23 | 2019-03-08 | 佛山市海明威生态科技股份有限公司 | A kind of aluminum non-chromium passivator and preparation method thereof |
| CN109943836A (en) * | 2019-04-30 | 2019-06-28 | 华南理工大学 | A kind of aluminum alloy surface chrome-free tanning agent and its application |
| CN112030151A (en) * | 2020-08-29 | 2020-12-04 | 合肥朗逸表面处理有限公司 | No-clean chromium-free conversion agent for continuous coil unit and preparation method thereof |
| CN116815171A (en) * | 2023-07-19 | 2023-09-29 | 四川亨通兴达科技有限公司 | Chromium-free passivating agent for aluminum piece and chromium-free passivating treatment process for aluminum piece |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101565826A (en) * | 2009-06-03 | 2009-10-28 | 北京科技大学 | Organic and inorganic composite aluminium alloy non-chromium passivation treatment fluid |
| CN102776501A (en) * | 2012-07-11 | 2012-11-14 | 东莞市闻誉实业有限公司 | Aluminum and aluminum alloy non-chromium passivation method and non-chromium passivation solution |
| CN104178758A (en) * | 2014-09-17 | 2014-12-03 | 朱忠良 | Chromate-free passivation method for aluminum and aluminum alloy |
| CN104264144A (en) * | 2014-10-31 | 2015-01-07 | 湖州织里天荣铝材添加剂厂 | Aluminum alloy product chemical conversion treatment process and nonferrous chromium-free film-forming agent |
| CN104651821A (en) * | 2015-02-11 | 2015-05-27 | 常州君合科技股份有限公司 | Novel aluminum and high-molecular aluminum alloy chromium-free film forming agent |
| CN106086844A (en) * | 2016-06-18 | 2016-11-09 | 安徽昊博健身器材有限公司 | A kind of surface treatment method of aluminum |
-
2016
- 2016-12-28 CN CN201611235588.4A patent/CN106756933A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101565826A (en) * | 2009-06-03 | 2009-10-28 | 北京科技大学 | Organic and inorganic composite aluminium alloy non-chromium passivation treatment fluid |
| CN102776501A (en) * | 2012-07-11 | 2012-11-14 | 东莞市闻誉实业有限公司 | Aluminum and aluminum alloy non-chromium passivation method and non-chromium passivation solution |
| CN104178758A (en) * | 2014-09-17 | 2014-12-03 | 朱忠良 | Chromate-free passivation method for aluminum and aluminum alloy |
| CN104264144A (en) * | 2014-10-31 | 2015-01-07 | 湖州织里天荣铝材添加剂厂 | Aluminum alloy product chemical conversion treatment process and nonferrous chromium-free film-forming agent |
| CN104651821A (en) * | 2015-02-11 | 2015-05-27 | 常州君合科技股份有限公司 | Novel aluminum and high-molecular aluminum alloy chromium-free film forming agent |
| CN106086844A (en) * | 2016-06-18 | 2016-11-09 | 安徽昊博健身器材有限公司 | A kind of surface treatment method of aluminum |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019006611A1 (en) * | 2017-07-03 | 2019-01-10 | 深圳市宏昌发科技有限公司 | Passivator, method of surface passivation of metal-plated part and metal workpiece |
| CN109440093A (en) * | 2018-11-23 | 2019-03-08 | 佛山市海明威生态科技股份有限公司 | A kind of aluminum non-chromium passivator and preparation method thereof |
| CN109943836A (en) * | 2019-04-30 | 2019-06-28 | 华南理工大学 | A kind of aluminum alloy surface chrome-free tanning agent and its application |
| CN112030151A (en) * | 2020-08-29 | 2020-12-04 | 合肥朗逸表面处理有限公司 | No-clean chromium-free conversion agent for continuous coil unit and preparation method thereof |
| CN116815171A (en) * | 2023-07-19 | 2023-09-29 | 四川亨通兴达科技有限公司 | Chromium-free passivating agent for aluminum piece and chromium-free passivating treatment process for aluminum piece |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106756933A (en) | A kind of aluminium alloy chrome-free tanning agent and preparation method thereof | |
| CN104593793B (en) | A kind of aluminium and aluminum alloy surface pre-process neutralizer | |
| CN105063598A (en) | Organic-inorganic residual heat blackening agent and preparation method thereof | |
| CN109763120A (en) | The more water-base metal antirusting agents of environment-friendly type and preparation method | |
| CN109252150B (en) | Solvent method batch hot galvanizing environmental protection passivating solution and its preparation and application | |
| CN105220138A (en) | The agent of a kind of Surface Rust of Weathering Steel stabilization treatment | |
| CN103194742B (en) | Inorganic-resin black coating agent applied to metal surface treatment, as well as preparation method and application of black coating agent | |
| CN104451634B (en) | Aluminum and aluminum alloy passivation solution, preparation method and using method thereof | |
| CN107254676A (en) | A kind of chrome-free tanning agent and preparation method thereof | |
| CN109609944B (en) | Aluminum alloy natural color chromium-free passivation treating agent and preparation method thereof | |
| CN104593759B (en) | Aluminum passivating agent | |
| JPH04232281A (en) | Method and composition for coating non-ferrous metal | |
| CN106435547B (en) | A kind of environment-protective process replacing chromic acid passivation | |
| CN104313589B (en) | A kind of micro-emulsion type metal antirust solution and preparation method thereof | |
| CN104356828A (en) | Water-based rust inhibitor for steel surfaces and preparation method thereof | |
| CN104404524A (en) | Aqueous antirust agent for steel and preparation method thereof | |
| CN114395758A (en) | Chromium-free passivation solution and passivation method for aluminum alloy | |
| CN104313587A (en) | Formula of surface passivation brightener for aluminum alloy welding wire and using technology thereof | |
| CN104561972A (en) | Chromium-free passivation treatment agent used before coating of cast aluminum alloy workpiece | |
| CN108866528A (en) | A kind of Aluminum passivator and the passivating method using the Aluminum passivator | |
| CN113621954B (en) | High corrosion-resistant rust-removing pre-blackening agent and preparation method and application thereof | |
| CN102808171B (en) | Quick environment-friendly phosphorus-free phosphating solution | |
| CN108570671B (en) | Environment-friendly vitrification agent | |
| DE745043C (en) | Process for the production of enamel-like protective layers on aluminum and its alloys | |
| WO2018218432A1 (en) | Film passivator, metal component, and passivation treatment method therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |